fed up- cant get a job

hello all. im just at my wits end. I have gone through 4 long years of school, studied and (thank god) passed the NCLEX my first time, but now i have another blockade. i cant get a job. not only can i not get a job, i cant even get an interview. i decided to take the summer of and relax, but this has turned out to be disastrous since every hospital i have applied to has already hired their new grads. I have a pretty strong resume and have sent my application to nearly 15 hospitals. i ahve been waiting for some sort of reply from anywhere but havent heard a peep. today i spent all day trying to call the recruiters of the hospitals or talk to HR to see the status. most times i get the same stuff-we'll contact you if we want you. and most places say not to bother coming in just give application via fax or email. i dont know what to do. please help. thanks